Magnetically aligned hole punch

Active Publication Date: 2006-03-14
TOMICH JENNIFER
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

[0016]In accordance with a seventh aspect of the invention the punch rod has one or more annular recesses formed in proximity with the top of the punch rod.
[0017]In accordance with an eighth aspect of th

Problems solved by technology

Virtually all of the simple punches based on the principles stated above have the same shortcoming, that is, the inability to allow a user to punch holes near the center of a sheet.

Method used

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  • Magnetically aligned hole punch
  • Magnetically aligned hole punch
  • Magnetically aligned hole punch

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0030]The present invention is an apparatus which allows the user to punch one or more holes in a sheet of paper or similar material anywhere in the sheet.

[0031]Prior art paper punches include simple, single hole punches and multi-hole punches which punch holes only within an inch of the edge of one or several sheets, but do not permit the punching of holes farther from an edge.

[0032]The present invention, like prior art punches, contains a punch rod with a sharpened punch surface, which is disposed on the top of the sheet to be punched, and which mates with a die on the opposite side of the paper.

[0033]However, in the present invention there is no mechanical connection between the assembly holding the punch rod and the punch die. Rather, these two elements are maintained in alignment by magnetically aligning the two.

Single Punch Embodiments

[0034]The instant invention may be understood by first referring to FIG. 4. An upper frame 4 contains the punch rod 7 which performs the perfora...

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Abstract

A punching device for punching paper and like sheet material contains an upper frame, a cooperating upper magnetic base supporting the upper frame, and a punch rod slideably disposed within the upper frame, and passing through a clearance hole formed in the upper magnetic base. A lower magnetic base contains a punch die. The lower magnetic base which magnetically aligns with the upper magnetic base when a paper sheet is disposed between the upper and lower magnetic bases, and the punch rod is then concentrically aligned with the punch die. This punching device can be used to punch a hole anywhere over the extent of the sheet, regardless of how far the hole is from any edge of the sheet.

Description

BACKGROUND OF INVENTION[0001]Paper punches are well know in the art and are found in nearly every office which generates or handles documents.[0002]Paper punches are commonly available in single hole varieties, in two and three hole varieties, and in multi-hole varieties which allow the user to adjust the distance between the various holes punched.[0003]Almost all of these punches use the same basic punching tool; namely, one or more of a punch rod sharpened at the lower end, and a cooperating punch die which is coaxially aligned with the punch rod, and which receives the punch rod as it is pushed through the sheet being punched.[0004]In addition, there is some means of applying a downward pressure to the punch rod, usually involving some kind of lever system to create mechanical advantage.[0005]FIG. 1 shows a typical prior art punch. The punch rod 101 is retained by a coil spring 301. The punch die 140 resides in a lower assembly 120 and is coaxially aligned with the guide 280 whic...

Claims

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Application Information

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IPC IPC(8): B26F1/14
CPCB26F1/02B26F1/36Y10T29/49897Y10T83/9452Y10T83/9459
InventorTOMICH, JENNIFER LYNNE
OwnerTOMICH JENNIFER